The theater arts committee estimated that it would sell 200 tickets for its upcoming play. the committee actually sold 224 tickets. what was the percent error in the committee’s estimate? round your answer to the nearest tenth of a percent.

Hi, can anyone show me how to do this problem? 100 points for this. in advance

From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?